Comparison

Max Strength and Probiotic Advantage Ultra 20

Max Strength (SimplyBiotix) lists 11 distinct ingredients and Probiotic Advantage Ultra 20 (Dr. David Williams) 11 (rows of one ingredient counted once); 11 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientMax StrengthProbiotic Advantage Ultra 20
Lactobacillus acidophilusnot disclosednot disclosed
Lactobacillus rhamnosusnot disclosednot disclosed
Bifidobacterium animalis lactisnot disclosednot disclosed
Lactobacillus plantarumnot disclosednot disclosed
Bifidobacterium bifidumnot disclosednot disclosed
Bifidobacterium longumnot disclosednot disclosed
Lactobacillus salivariusnot disclosednot disclosed
Lactobacillus paracaseinot disclosednot disclosed
Bifidobacterium infantisnot disclosednot disclosed
Lactobacillus gasserinot disclosednot disclosed
Kiwi250 mg250 mg

Amounts are per serving as DSLD gives them: Max Strength, 1 tablet; Probiotic Advantage Ultra 20, 2 tablets. Current labels entered April 2019 and July 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own